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Title page for ETD etd-04052012-144812


Type of Document Master's Thesis
Author Tucker, John Michael
Author's Email Address john.m.tucker@vanderbilt.edu
URN etd-04052012-144812
Title Design and Experimental Evaluation of a High Energy Density Elastomeric Strain Energy Accumulator
Degree Master of Science
Department Mechanical Engineering
Advisory Committee
Advisor Name Title
Eric J. Barth Committee Chair
Robert J. Webster III Committee Member
Thomas J. Withrow Committee Member
Keywords
  • hydraulic
  • regenerative braking
  • strain energy
  • fluid power
  • hybrid
  • energy density
  • power density
Date of Defense 2012-04-05
Availability unrestricted
Abstract
DESIGN AND EXPERIMENTAL EVALUATION

OF A HIGH ENERGY DENSITY ELASTOMERIC

STRAIN ENERGY ACCUMULATOR

By

John Michael Tucker

Thesis under the direction of Professor Eric J. Barth

This project entails the design and demonstration of a hydraulic accumulator which utilizes the deformation of an elastomeric material in order to capture and store energy in the form of strain energy. The primary application presented in this thesis is regenerative braking in hybrid vehicles. Motivations are presented for the choice of strain as the energy storage domain, and several candidate elastomers are evaluated for their strain energy density and efficiency. The potential for compactness in a strain energy accumulator is examined and demonstrated experimentally, and several accumulator designs as well as design metrics are proposed and discussed. Prototypes for two of these designs are presented and evaluated based on the proposed design metrics. Finally, this thesis includes direction and considerations for future work on strain energy accumulator design and development.

Approved:Eric J. Barth Date:4/5/2012

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